Dump-car.



E. M. LIED.

DUMP GAR.

APPLICATION FILED MAY 12, 1908.

Patmted Dec. 22, 1908 WITNESSES:

Emst M Lied INVEN'TOR UNIT STATES P gE 'r onnron.

nnusr MITCHELL Linn, or ootounusonio, assieuoa .ro THE KELBOURNE AND moons MANUFACTURING ,GOMPANY, or COLUMBUS, 01110, A CORPORATION F TOHIO.

Specification of Letters Patent.

Patented Dec. 22, 1908;

A ncaammeana ia 1608. Serial No. 432,487.

- and useful Improvements in Dump-Cars, of

which the followin is a specification.

My invention re ates to improvementsin dump cars, especially of the style of car that is pivoted on the truck and adapted-to be 'operatedfrom one .endthereof, and swung upon its'pivot to. dump towards its opposite end; pre erably at the opposite end'there is provided a" pivoted door which is suspended from the top of the car and swings. outwardly away from the car whenever the dumping operation takes place, whereby the"1ladi-I1g may be discharged from the end? The door of the car, for: quick operation, should be arranged to be lockedand unlocked automatically, andmy improvement relatesto an automatic locking and releasing construction for the door of a car of the general type above mentioned.

The manner of carrying o'utmy invention will be hereinafter fully described, but it will be stated, here that the idea is toprovide a door to be unlocked automatically by tilting, the car from its normal position, andto be automatically locked by returning the: car .to its normal position. I

In the drawings which are hereto attached and hereby made a part of this specification, Figure 1 is a side view of a car-having my improvements thereon shown in normalposition, and also in dumped position in the,

dotted lines; Fig. 2 is an end view showing the door construction and the lock therefor innormal position. v

Referring to the drawings in which the same numeral indicates the same part throughout, 1 is the truck ofa dump car,

provi ed with the turn table 2 appropriately mounted thereon; the hinge pin 3 completes the hinge construction formed by the mem ber4 secured to the under side of the car box 5 having the hook at its end, .and the bracket or bearing member 6 arising from the turntable at one end and secured thereto, and having its other end formed with a hook, the hooks thus provided on members 4 and 6 registering for the reception of the pin 3. The connection between' the car box.5 and the truck therefor isformed by means of this hinge construction just described; The car ad acent its front end is providedwith the notched member 7 which is adapted to. be

engaged by thehookle'ver .8 to latch the car box in its normal position ;=this hook lever 8 is pivoted upon the truck at 9, and. is so arranged as to be preferably controlled by the foot of the operatorpressing upon the extension 10, to unlock the same whereby the car box isreleased and may .be dumped. The car door, 1.1.is provided. at its upper ends with the gusset plates 12 which extendalong the side of the car, and receive the pivot bolts 13 at some distance from the end of the car; pivotin the doorin this manner gives it greater. 0 earance from the track .upon which the car moves, when the dooris swung open, and thereby obviatesthe difiiculty' experienced in= this-type .ofvcar where the door is .pivotedat the end thereof. Thedooris adapted to be engaged at, its lower end .byra locking constructlon which is automatically locked and released throu h the dumping operationof'the car and w 'ch will nowbe described.

Near the end of'the bottom of the .car is provided a yoke orbraoket memberrl l, which may be secured to the. car inany desired man-' ner; a secondibracket member 15 is secured to the bottom of the car above the turn table .2, and in this bracketmember. 15 is pivotally itsupper end18. towards the right or rearzen.

of the car. When the car box is again lowered, the lower end of the cam lever engages the upper face of the turntable 2 and is thereby swung on the pivot '16 to withdraw or-retract the upper end 18. Pivotally connected with the upper end 18 of the cam lever 17; is the bar 19, extending longitudinally beneath the car to a point adjacent its front end .where it is provided with a headed portion 20'which is pivotally connected at 21'with the hook 22,

which is positioned in the yoke member 14 to have, considerable freedom of movement therein, both. longitudinally and vertically. The hook member 22 is adapted whenrthe car i is in its normal position to engage the lower end of the door 11 and thus lock the door securely. The position of the parts of the looking device when the car is in its normal position is shownin Fig. 1, in heavy lines, while the position of the parts when the car is dumped and the door is consequently unlocked and opened is shown in dotted lines in ig. 1. v i

The operation of the parts to pass from their normal position to their unlocked POSI- tion is as follows, to wit: When the operator has released the latch She lifts upwardly on the handle 24 thereby relieving the cam lever from its engagement with the u per face of the turntable 2, whereupon it is ree to swing on its pivot 16; the cam lever is actuated to swing on its pivot by the pressure of the door and the lading crowding thereagainst on the hook 22, whereby the hook will be forced outwardly away from the car, therebv swing ing the cam lever on its pivot. When the lading pressing against the door has caused the same to force t e hook to an unlocking position, the book will of its own weight swing downwardly upon its ivot 21 thereby passing out of the way of tiie swinging door 11, this movement being timed to take place at the roper moment for the swinging open of the 001' and the discharge of the lading.

It will be noted that the yoke member 14 is curved so that its outer side is slightly lower than its inner side, which formation facilitates the drop of the hook when it is released from contact with the door. The position of the hook When the door is open is shown in dotted lines in F l.

When the car box is being restored to its normal position, the door 11 will swing towards its closed position, and'the cam lever 17 will engage the turntable, thereby withdrawing the hook 22; the movement of the door and the retraction of the hook 22 are so timed that the door will ass above the hook and just as it has reache its closed position, the hook will be tilted upwardly by the curved lower face of the yoke 14, and thereby will engage the door construction at 23. 1t is therefore seen that the lifting of the car box discngages the cam leyer from the truck, and the pressure of thelweightnf the door of an empty car or of the ladlng of a loaded car against the door-will force the hook 22 outwardly and when it has reached the proper point it will of its own weight fall away from the door, due to the shape of the yoke, thereby permitting the lading to swing the door 0 en; this movement of the parts all takes p ace automatically consequent upon the ifting of the car box by the handle 24 on its pivot 3. When the "car box is returned to its normal position, the engagement of the cam lever 17 with the truck automatically retracts the hook 22 ton proper locking position, while the door 11, through gravity is swinging to its closed position; It is therefore seen that the operation of the locking and releasing devices herein described is automatic.

I do not confine myself to the specific construction shown and described, but desire to claim all modifications which are within the spirit of my invention.

What I claim is:

1. In a dump car pivoted upon a truck andhaving a swinging door, a cam lever pivoted to said car and adapted to be out of contact with said truck when said car is dumped, a hook for said door, a bar connecting said hook and said lever, said lever being adapted to be brought into contact with said truck when the car is righted, whereby said lever is swung upon itsv ivot to retract said bar and actuate said 00k to 7 look the door.

2. In a dump car hinged upon its truck and having a pivoted door. an automatic locking and releasing construction for said door comprising a yoke member depending from said car box, a hook member for locking said door positioned in said yoke member and.

direction by gravit when free to move, and in the opposite irection by engagement with the truck, a bar pivotally connected with said lever, a hook member pivotally connected with said bar member and adapted 'to engage said door to lock the sa-ne, said hook member being adapted to be actuated by the pressure of said door thereagainst when the car box is tilted to move said bar longitpdinally whereby said lever is swung to swing in one direction. and by contact wit the truck to be swung in the opposite direc; tion. a bar pivotally connected with said lever and hinged beneath said car box for longitudinal reciproration. a hook member pivotall connected with said bar and adapte to be retracted longitudinally.

thereby, a. yoke mounted upon said ear box been retracted by the longitudinal movement of said bar. 10

in testin'lony whereof I affix my signature in the presence of two witnesses.

' ERNST MITCHELL LIED.

Witnesses CHAS. H. DoTY; J s. W. FERGUSON V i and aelepted to receive said hook member, whereby said hook member is permitted to fall away from engagement with the said door when it has been moved to its outermost position, and whereby said hook meme beris adapted to be raised to its normal locking position when said hook member has i 

